Seed-free deposition of large-area adhesive diamond films on copper surfaces processed and patterned by femtosecond lasers - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Thin Solid Films Année : 2017

Seed-free deposition of large-area adhesive diamond films on copper surfaces processed and patterned by femtosecond lasers

Résumé

We demonstrate that femtosecond (fs) laser patterning of Cu can be exploited to realize seed-free deposition of large-area adhesive diamond films on Cu. Fs-laser-induced nanostructures promote diamond nucleation density and result in diamond film formation within a laser fluence window from 2.6 to 3.6 J cm− 2. Diamond films deposited on Cu surfaces prepared outside this window experience either complete film detachment or formation of low-quality ball-like diamond grains. Diamond/substrate interface roughness plays a critical role in controlling diamond quality and adhesion between substrates and diamond films. Large-area adhesive diamond films have been achieved on Cu substrate surfaces that were first modified with fs-laser irradiation and then scribed into grid patterns. The scribed channels function as expansion joints for stress relief. Strain-free diamond films have been achieved by optimizing the grid size. Using fs-laser processing for seed-free deposition of large-area diamond films on Cu is of great significance for diverse applications, such as thermal management and power electronic devices.

Domaines

Matériaux
Fichier principal
Vignette du fichier
2017-099-submitted.pdf (1.63 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01569398 , version 1 (11-03-2021)

Identifiants

Citer

Lisha Fan, Yunshen Zhou, Mengmeng Wang, Jean-François Silvain, Yongfeng Lu. Seed-free deposition of large-area adhesive diamond films on copper surfaces processed and patterned by femtosecond lasers. Thin Solid Films, 2017, 636, pp.499-505. ⟨10.1016/j.tsf.2017.06.058⟩. ⟨hal-01569398⟩
98 Consultations
35 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More